I remember, as a kid, seeing footage of the 1940 Tacoma Narrows bridge disaster. And since a bridge across the river in my childhood town had suspension elements,

I was always wondering if it would do the same thing. But in forty years since the Tacoma event, engineers have learned quite a bit. Since then bridge vs. wind harmonics are studied fiercely if anyone wants to design a bridge. Wind tunnel time, even, as we see in the end of the second video.


. But here we see a new steel construction with concrete pylons. Perhaps they need to construct additional pylons..... pylons...

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